Waec Model Questions Vol1 2020 Mathematics Question 1
Practice objective / multiple choice question 1 from the 2020 Waec Model Questions Vol1 Mathematics examination.
A bag contains red, blue and green balls. The probability that a ball drawn at random is red is \(1/3\). If it is known that the first ball drawn is red, the probability that the second ball drawn (without replacement) is blue is \(2/7\). The bag originally contains a total of 36 balls. How many green balls are in the bag?
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About This Question
This is Waec Model Questions Vol1 2020 Mathematics Question 1. It is one of the objective questions from the 2020 Waec Model Questions Vol1 Mathematics examination.
Difficulty level: Hard .
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